A refined case, and a treasure-chest idea
The updated prototype case — smaller, rounder, easier in the hand — and the old idea behind it: a hardware wallet is a treasure chest for your Bitcoin.
Read the update →We're building PHYLAX in public. Every prototype milestone, every decision, every honest setback — posted here first. No hype, just the work.
The updated prototype case — smaller, rounder, easier in the hand — and the old idea behind it: a hardware wallet is a treasure chest for your Bitcoin.
Read the update →We fitted the large, easy-to-read 2.24" OLED onto a modified, smaller PCB (v3.0) — chasing a readable screen and a compact device at once. Plenty still to test, but a real stepping stone.
Read the update →Our design philosophy in one phone: the indestructible Nokia 3310. No frills, core function only, Bitcoin-only and backward compatible — a wallet built to last a decade. (Board now on v3.0.)
Read the update →A hardware-wallet screen is where you verify — too small and people stop checking. We put three OLED sizes on the bench (2.24", 1.54", 0.96") to balance readability, palm size and cost.
Read the update →Two more durability upgrades for the first build: the MCU moves to the industrial -40 to +105 °C grade (STM32F205RET7), and the display connector gets gold-plated contacts.
Read the update →The parts you touch, chosen for lifespan: an Alps Alpine button rated for 1,000,000 presses and a GCT USB-C port good for 20,000 cycles. Durable, not fancy.
Read the update →We 3D-printed the first physical case to judge the feel in the hand. The honest first verdict: it's bigger than it needs to be — so we're shrinking it.
Read the update →Two decisions from the bench: why PHYLAX ships with no battery, and why we moved the USB-C port to the top — with a waterproof GCT connector rated for 20,000 plugs.
Read the update →Where the idea came from — an iPod, a Pikachu, and a wallet with no black box and no fancy features — and why we're debuting the prototype at Bitcoin Thailand Conference 2026.
Read the update →More updates land here as the prototype progresses. Subscribe from the home page so you never miss one.